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Preview BIM Files in Egnyte


Included in the Specialized File Handler Add-On, BIM file preview makes it possible to view file extensions commonly found in modeling applications from Architecture, Engineering, and Construction industries.

Native software licenses for the respective applications are not required to view these files in Egnyte.

Supported File Types

Domains that have this feature enabled should be able to view the following file types directly in Egnyte’s WebUI. The maximum supported file size for each file type is included.

File Extension

Maximum File Size (MB)

.dgn 50
.dwf 50
.dwg 150
.dxf 50
.ifc 400
.rvt 400
.stl 50
.stp 50
.step 50
.obj 400


BIM File Preview in the Web

To view the supported BIM file extensions using Egnyte’s BIM file preview feature, navigate to your Egnyte Web UI and click the file link. The file will open in Egnyte’s native preview with an "Analyzing file" message.


If the file has not previously been transcoded, the user will be informed that the transcoding process has started and they can navigate away from the file preview. The transcoding process will continue in the background and the user will receive an Egnyte notification when it is complete.


If the file has recently been viewed in Egnyte or when the file finishes transcoding, the user will see a “File downloading” message. Once the download has been completed, the file will render in the preview.



When the file transcoding process completes, the user will receive 2 types of notifications within Egnyte’s WebUI.

1. The user will receive a notification from the bell icon in the upper right corner of the WebUI. If successful, this will include a link that will allow the user to open the file directly in the preview.


2. A pop-up notification will appear that will inform the user the file is ready for preview. If successful, this notification also includes a link to open the file directly in the preview.


Web UI Toolbar

After successfully viewing one of the supported file extensions, the toolbar available in the preview includes three unique functions.

Orbit - Users can rotate a file on any axis to view the file from different angles. This is most commonly used for 3D files.


Zoom - Unlike PDF preview, zoom in and zoom out are consolidated into a single icon.


Measure - If properly calibrated within the native file, a user can click and drag to measure between two points directly within the file itself.


BIM File Preview from Mobile (iOS & Android)

Egnyte’s mobile applications support .dwg and .dxf files on both iOS & Android as well as .dgn on Android devices. To view one of these files from Egnyte’s mobile applications, begin by selecting a file for preview in the listing view. Once the file is opened, the user can select the hand control to move the object on the screen with a finger and the orbit control to turn the object around. Pinching can be used to zoom in and out the object on the screen.


Users who want to preview these files within the Egnyte mobile apps will need to download a special plugin. They will be prompted to do so (1) when the app is updated to version 8.34 and the feature is enabled on their plan, and (2) when the user tries to preview a file and the plugin hasn’t been installed previously.

BIM File Preview from Desktop

BIM file preview is supported from the desktop application via the WebUI. After locating the file that you wish to preview in File Explorer (Windows) or Finder (Mac), right click on the file and locate the "View in Cloud" option. Selecting this option will open the file in the web browser directly from your desktop application.



  • Users can transcode up to 5 files simultaneously in the WebUI
  • The ability to render a preview in the mobile app is dependent on the file complexity and may be limited or unavailable for which contain numerous references to other files. The size of the file may also impact the preview experience.
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